Indocalamus leaf sorting device

Abstract

The chequer-shaped indocalamus leaf sorting device comprises a rack and conveying mechanisms, the conveying mechanisms comprise the first conveying mechanism and the second conveying mechanism, the chequer-shaped indocalamus leaf sorting device further comprises a first pressing roller, a first driving motor and a discharging plate, the first driving motor drives the first pressing roller to rotate synchronously in the reverse direction, and the discharging plate is arranged between the first conveying mechanism and the second conveying mechanism. And the discharging plate is driven by the second driving motor to rotate and is switched between an opening position and a closing position, when the discharging plate rotates upwards to the opening position, the material guiding face of the discharging plate faces the first conveying mechanism, a discharging opening is formed between the discharging plate and the first conveying mechanism, and when the discharging plate rotates to the closing position, the discharging opening is closed by the discharging plate. The discharging plate is directly arranged on the conveying path of the conveying mechanism, the structure is simple, and the sorting action is efficient and reliable.

Description

Technical Field

[0001] This utility model relates to the field of bamboo leaf sorting, and specifically to a bamboo leaf sorting device. Background Technology

[0002] In the bamboo leaf processing industry, traditional manual sorting methods suffer from low efficiency, high labor intensity, and difficulty in guaranteeing sorting accuracy. With the development of automation technology, machine vision-based bamboo leaf sorting equipment has been widely used. While front-end recognition technology is relatively mature, significant shortcomings remain in the back-end sorting execution stage. Existing technologies mainly employ jet-type or push-rod-type sorting devices. These solutions require pushing the bamboo leaves laterally perpendicular to the conveying direction, increasing the conveying path and complicating the equipment structure. This current technological state severely restricts the overall efficiency and reliability of bamboo leaf sorting equipment, necessitating the development of a simple, direct, efficient, and reliable sorting execution solution. Utility Model Content

[0003] Therefore, one objective of this utility model is to provide a bamboo leaf sorting device that directly sorts bamboo leaves in the conveying direction, thereby improving efficiency and reliability.

[0004] The bamboo leaf sorting device of this utility model embodiment includes a frame and a conveying mechanism. The conveying mechanism is divided into a first conveying mechanism and a second conveying mechanism. The bamboo leaf sorting device also includes:

[0005] The first pressure roller is disposed at the rear end of the first conveying mechanism;

[0006] A first drive motor drives the first pressure roller to rotate synchronously in the opposite direction.

[0007] A feeding plate is disposed between the first and second conveying mechanisms;

[0008] The second drive motor drives the feeding plate to rotate and switch between the open position and the closed position. When the feeding plate rotates upward to the open position, the guiding surface of the feeding plate faces the first conveying mechanism and forms a feeding port between the feeding plate and the first conveying mechanism. When the feeding plate rotates to the closed position, the feeding port is closed by the feeding plate.

[0009] Furthermore, the opening position is located at the position closest to the material feed plate and the first pressure roller.

[0010] Furthermore, the guiding surface is a concave arc surface.

[0011] Furthermore, the feeding plate is connected to the second drive motor via a first synchronous belt.

[0012] Furthermore, a position indicator plate is provided on the side of the feeding plate, and a first photoelectric sensor is provided at the corresponding position on the frame.

[0013] Furthermore, a second pressure roller is provided at the front end of the second conveying mechanism. The first drive motor is connected to both the first and second pressure rollers and drives the first and second pressure rollers to rotate synchronously in opposite directions.

[0014] Furthermore, the height of the first pressure roller and / or the second pressure roller can be adjusted.

[0015] Furthermore, the height of the first drive motor is adjustable.

[0016] Furthermore, the outer ring of the first pressure roller and / or the second pressure roller is made of an elastic material.

[0017] Furthermore, a second photoelectric sensor is also provided in front of the first pressure roller.

[0018] The beneficial effects of the sorting device of this utility model are as follows:

[0019] In the sorting device provided by this utility model, a feeding plate is set on the conveying path of the conveying mechanism. After the feeding plate rotates upward, the bamboo leaves are guided into the feeding port by the guide surface. At the same time, a first pressure roller is set to increase the sorting thrust. Compared with the air-blowing or lever-type sorting devices in related technologies, the sorting device of this utility model has a simple structure and is highly efficient and reliable. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the bamboo leaf sorting device provided in this embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of a bamboo leaf sorting device with a sorting plate in the open position according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram showing the connection between the sorting plate and the first drive motor provided in this embodiment of the utility model;

[0024] Figure 4 This is a schematic diagram of a bamboo leaf sorting device with a sorting plate in the closed position according to an embodiment of the present invention;

[0025] Figure 5This is an exploded view of the mounting bracket provided in an embodiment of this utility model.

[0026] Explanation of icon numbers:

[0027] Frame 1, conveying mechanism 2, conveying surface 20, first conveying mechanism 21, second conveying mechanism 22, first pressure roller 3, mounting bracket 30, top plate 31, mounting column 32, convex rail 321, elongated hole 322, lifting plate 33, chute 331, fixed seat 34, rotating wheel 35, long screw 36, first nut 37, second nut 38, spring 39, first drive motor 4, first driving gear 41, first driven gear 42, first synchronous belt 43, discharge plate 5, passing surface 50, guiding surface 51, discharge port 52, first gap 53, position indicator plate 54, first photoelectric sensor 55, second drive motor 6, second driving gear 61, second driven gear 62, second synchronous belt 64, second pressure roller 7, second photoelectric sensor 8. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] The bamboo leaf sorting device of this utility model includes a frame 1, a conveying mechanism 2, a first pressure roller 3, a first drive motor 4 for driving the first pressure roller 3 to rotate, and a feeding plate 5 for performing sorting operations. The structure of the sorting device will be described in detail below.

[0030] like Figure 1 , 2 As shown, the conveying mechanism 2 is divided into a first conveying mechanism 21 and a second conveying mechanism 22, which are separate from each other. In the embodiment description of this utility model, according to the conveying path direction of the conveying mechanism 2, the input end of the conveying mechanism 2 that receives the bamboo leaves is defined as "front", and the output end of the conveying mechanism 2 that outputs the bamboo leaves is defined as "rear". Then, a first pressure roller 3 is provided at the rear end of the first conveying mechanism 21.

[0031] The first pressure roller 3 is connected to the first drive motor 4 and is driven to rotate by the first drive motor 4. The rotation direction A is opposite to the conveying direction S of the first conveying mechanism 21. Figure 2As shown, the linear velocity of the outer surface of the first pressure roller 3 is the same as the conveying speed of the first conveying mechanism 21, thereby ensuring that the bamboo leaves pass smoothly between the first pressure roller 3 and the first conveying mechanism 21. The rotation direction and speed are defined as reverse synchronous rotation in the description of this utility model.

[0032] Specifically, such as Figure 1 , 2 As shown, a first driving gear 41 is sleeved on the output shaft of the first drive motor 4, and a first driven gear 42 is also provided on the same side of the first pressure roller 3. The first driving gear 41 and the first driven gear 42 are connected and transmit driving force through a first synchronous belt 43.

[0033] A discharge plate 5 is provided between the first conveying mechanism 21 and the second conveying mechanism 22, such as Figure 2 As shown, the cross-section of the feed plate 5 is triangular, with a through surface 50 and a guide surface 51. The thicker end is also equipped with a rotating shaft, which is connected to the frame 1 near the second conveying mechanism 22.

[0034] A second drive motor 6 is also fixedly mounted on the frame 1. The second drive motor 6 is connected to the rotation shaft of the feeding plate 5 and drives the feeding plate 5 to rotate, switching between the open and closed positions. When the feeding plate 5 rotates upward around the rotation axis to the open position, the guide surface 51 of the feeding plate 5 faces the first conveying mechanism 21, and the guide surface 51 and the rear end of the first conveying mechanism 21 form a feeding port 52. When the feeding plate 5 rotates downward around the rotation axis to the closed position, the feeding plate 5 is in a horizontal state, the feeding port 52 is closed by the feeding plate 5, and the passing surface 50 of the feeding plate 5 is at the same height as or slightly lower than the conveying surface 20 of the first conveying mechanism 21 and the first conveying mechanism 22.

[0035] Preferably, the connection between the feeding plate 5 and the second drive motor 6 is a synchronous belt connection. For example... Figure 3 As shown, the second drive motor 6 is located below the conveying mechanism 2 and is fixedly connected to the frame 1. A second drive gear 61 is sleeved on the output shaft, and a second driven gear 62 is sleeved on the same side of the rotating shaft of the feed plate 5. The second drive gear 61 and the second driven gear 62 are connected by a second synchronous belt 64.

[0036] Optionally, in some embodiments of this utility model, the connection between the feed plate 5 and the second drive motor 6 is a gear connection. A second driving gear 61 is sleeved on the output shaft of the second drive motor 6, and a second driven gear 62 is sleeved on one side of the rotating shaft of the feed plate 5. The second driving gear 61 and the second driven gear 62 directly mesh externally.

[0037] Based on the structure of the sorting device described above, the specific working method of this utility model embodiment is as follows:

[0038] The first conveying mechanism 21 conveys the bamboo leaves to the first pressure roller 3. The first pressure roller 3 is driven by the first drive motor 4 to rotate in the opposite direction, and together with the first conveying mechanism 21, it flattens the bamboo leaves. At the same time, the friction force pushes the bamboo leaves along the conveying direction. The feeding plate 5 is in the initial closed position, and the feeding port 52 is closed by the feeding plate 5.

[0039] If the bamboo leaves do not meet the sorting conditions, the discharge port 52 remains in the closed position, and the bamboo leaves enter the unpowered passage surface 50 under the combined action of the first pressure roller 3 and the first conveying mechanism 21. After entering the second conveying mechanism 22, the bamboo leaves continue to be conveyed along the conveying direction under the combined action of the first pressure roller 3, the first conveying mechanism 21 and the second conveying mechanism 22. After the bamboo leaves leave the first pressure roller 3 and the first conveying mechanism 21, they are conveyed separately by the second conveying mechanism 22.

[0040] If the bamboo leaves meet the sorting conditions, the second drive motor 6 starts, driving the feeding plate 5 to rotate upward around the axis of rotation to the open position, with the guide surface 51 facing the first conveying mechanism 21, and the feeding port 52 opens; the bamboo leaves are conveyed to the guide surface 51 under the combined action of the first pressure roller 3 and the first conveying mechanism 21. When the front end of the bamboo leaves abuts against the guide surface 51, under the action of the bamboo leaves' own weight and the component force along the guide surface 51 of the thrust of the first pressure roller 3 and the first conveying mechanism 21, the bamboo leaves enter the feeding port 52; finally, they leave the first pressure roller 3 and the first conveying mechanism 21, and completely pass through the feeding port 52 and enter the sorting channel under their own weight; the second drive motor 6 starts again, driving the feeding plate 5 to rotate downward around the axis of rotation to the closed position, and the feeding port 52 closes.

[0041] Preferably, the opening position of the feeding plate 5 is located at the position closest to the first pressure roller 3, specifically at the point where the first gap 53 between the feeding plate 5 and the first pressure roller 3 is at its minimum. Figure 2 As shown. In the open position, if the angle between the feed plate 5 and the first conveying mechanism 21 is too large, the sorting resistance increases when the bamboo leaves come into contact with the guide surface 51, potentially causing the bamboo leaves to get stuck at the outlet, affecting sorting and the subsequent normal operation of the entire mechanism. Additionally, a large first gap 53 may cause the bamboo leaves to be abnormally pushed out through this gap. If the angle between the feed plate 5 and the first conveying mechanism 21 is too small, although the component of the thrust along the guide surface 51 is large when the bamboo leaves come into contact with it, the increased first gap 53 may cause the bamboo leaves to be abnormally pushed out through this gap. Therefore, the open position is set at the point where the first gap 53 is at its minimum, ensuring a large component of the thrust along the guide surface 51 while also ensuring the reliability of bamboo leaf sorting along the guide surface 51.

[0042] Furthermore, the guide surface 51 of the feed plate 5 is a concave arc surface. For example... Figure 2As shown, when the opening position of the feed plate 5 is set at the position closest to the first pressure roller 3, in order to further increase the component force of the thrust along the guide surface 51, the guide surface 51 is set as an arc surface that is concave to the feed plate 5. With the opening position unchanged, the resistance when the bamboo leaf comes into contact with the guide surface 51 is reduced and the component force along the guide surface 51 is increased.

[0043] In some embodiments of this utility model, the open and closed positions of the feeding plate 5 are positioned and controlled by photoelectric sensors. A position indicator plate 54 is fixedly connected to one end of the rotation axis of the feeding plate 5, and a first photoelectric sensor 55 is provided at a position corresponding to the position indicator plate 54. The first photoelectric sensor 55 is fixedly connected to the frame 1.

[0044] Preferably, a second pressure roller 7 is also provided at the front end of the second conveying mechanism 22, which is connected to the first drive motor 4. The first drive motor 4 jointly drives the first pressure roller 3 and the second pressure roller 7 to rotate synchronously in opposite directions. Figure 4 As shown, a second pressure roller 7 is installed at the front end of the second conveying mechanism 22. This increases the conveying force on the bamboo leaves when they do not meet the sorting conditions and need to pass through the discharge plate 5. Especially after the bamboo leaves leave the first pressure roller 3 and the first conveying mechanism 21, if only the second conveying mechanism 22 continues to convey the bamboo leaves, part of the leaves will be on the unpowered passage surface 50, and part will be on the second conveying mechanism 22, potentially causing jamming during leaf conveying. The second pressure roller 7, located at the front end of the second conveying mechanism 22, ensures that the bamboo leaves have entered the second pressure roller 7 and the second conveying mechanism 22 before leaving the first pressure roller 3 and the first conveying mechanism 21, and still have sufficient thrust to ensure the bamboo leaves pass smoothly through the unpowered discharge plate 5.

[0045] In some embodiments of this utility model, in order to ensure normal sorting, it is necessary to increase the thrust of the first pressure roller 3 and the first conveying mechanism 21 on the bamboo leaves. This requires appropriately reducing the distance between the first pressure roller 3 and the first conveying mechanism 21 to increase the friction between the first pressure roller 3 and the first conveying mechanism 21 on the bamboo leaves. At the same time, it is also necessary to ensure that the gap is not too small to avoid damaging or even jamming the bamboo leaves. Therefore, the distance between the first pressure roller 3 and the first conveying mechanism 21 needs to be adjustable, which can be achieved by the mounting bracket 30 of the first pressure roller 3. The specific structure is as follows:

[0046] like Figure 5As shown, the mounting bracket 30 includes a top plate 31, four mounting columns 32, two lifting plates 33, and two fixed seats 34. The four mounting columns 32 are fixed between the top plate 31 and the two fixed seats 34. The lifting plates 33 are connected between the two mounting columns 32, and the first pressure roller 3 is rotatably fixed between the two lifting plates 33. A protruding rail 321 is provided vertically on the side of the mounting column 32 facing the lifting plate 33. The lifting plates 33 have concave grooves 331 on both sides. The lifting plates 33 are coupled between the two mounting columns 32 through the grooves 331 and the rails 321, and only the vertical degree of freedom is retained under the coupling of the grooves 331 and the rails 321. The mounting bracket 30 also includes two long screws 36. The top of the long screws 36 is connected to a rotating wheel 35 and passes through the threaded hole of the top plate 31. The bottom of the long screws 36 is threadedly connected to the lifting plates 33 and fastened by a first nut 37. Between the top plate 31 and the lifting plate 33, a long screw 36 is fitted with a spring 39 and secured by a second nut 38. When adjusting the height of the lifting plate 33, the first nut 37 is loosened, and the rotating wheel 35 is rotated so that the long screw 36 can adjust the height of the lifting plate 33, thereby adjusting the distance between the first pressure roller 3 and the first conveying mechanism 21; adjusting the second nut 36 can adjust the deformation of the spring 39, thereby adjusting the damping of the rotating wheel 35.

[0047] In the embodiments of this utility model, the mounting bracket 30 of the second pressure roller 7 has the same structure and function as the mounting bracket 30 of the first pressure roller 3, and will not be described again.

[0048] Furthermore, to ensure the reliability of the connection between the first pressure roller 3, the second pressure roller 7, and the first drive motor 4 after adjustment, the installation height of the first drive motor 4 can also be adjusted, such as by adjusting the tension of the first synchronous belt 43 between the first drive motor 4 and the first pressure roller 3 and the second pressure roller 7. The first drive motor 4 is mounted on a mounting post 32 of the mounting bracket 30. The mounting post 32 has two elongated holes 322, through which the installation height of the first drive motor 4 can be adjusted.

[0049] In some embodiments of this utility model, the height adjustment of the first pressure roller 3, the second pressure roller 7, and the first drive motor 4 can also adopt other structures commonly used by those skilled in the art. For example, the height of the first pressure roller 3 can be adjusted by embedding the lifting plate 33 into the groove corresponding to the mounting column 32, and the height of the first drive motor 4 can be adjusted by setting multiple holes on the mounting plate.

[0050] Preferably, the outer ring of the first pressure roller 3 or / and the second pressure roller 7 is made of an elastic material, which can reduce the pressure damage to the bamboo leaves while maximizing friction.

[0051] In some embodiments of this utility model, the feeding frequency of the conveying mechanism 2 is uniform and constant, that is, the interval between the bamboo leaves conveyed by the conveying mechanism 2 is specific and constant. The conveying mechanism 2 conveys the bamboo leaves to the lower material plate 5 at a uniform speed. The starting time of the second drive motor 6 driving the lower material plate 5 to rotate to the open position can be set to a specific and constant value according to the feeding frequency.

[0052] Preferably, a second photoelectric sensor 8 is also provided above the first conveying mechanism 21, specifically in front of the first pressure roller 3. The second photoelectric sensor 8 detects the bamboo leaves conveyed to the front of the first pressure roller 3 and participates in controlling the starting timing of the second drive motor 6 to drive the feeding plate 5 to rotate to the open position. This can improve the accuracy of control and also cope with situations where the feeding frequency of the conveying mechanism 2 is uneven or changes.

[0053] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0054] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0055] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0056] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A bamboo leaf sorting device, comprising a frame (1) and a conveying mechanism (2), characterized in that, The conveying mechanism (2) is divided into a first conveying mechanism (21) and a second conveying mechanism (22). The bamboo leaf sorting device also includes: The first pressure roller (3) is located at the rear end of the first conveying mechanism (21); The first drive motor (4) drives the first pressure roller (3) to rotate synchronously in the opposite direction; The feeding plate (5) is disposed between the first and second conveying mechanisms (21, 22); The second drive motor (6) drives the feeding plate (5) to rotate and switch between the open position and the closed position. When the feeding plate (5) rotates upward to the open position, the guide surface (51) of the feeding plate (5) faces the first conveying mechanism (21) and forms a feeding port (52) between the feeding plate (5) and the first conveying mechanism (21). When the feeding plate (5) rotates to the closed position, the feeding port (52) is closed by the feeding plate (5).

2. The bamboo leaf sorting device according to claim 1, characterized in that, The opening position is located at the closest position between the feed plate (5) and the first pressure roller (3).

3. The bamboo leaf sorting device according to claim 2, characterized in that, The guide surface (51) is a concave arc surface.

4. The bamboo leaf sorting device according to claim 1, characterized in that, The feeding plate (5) is connected to the second drive motor (6) via a first synchronous belt (43).

5. The bamboo leaf sorting device according to claim 1, characterized in that, The side of the feed plate (5) is provided with a position indicator plate (54), and a first photoelectric sensor (55) is provided at the corresponding position on the frame (1).

6. The bamboo leaf sorting device according to any one of claims 1-5, characterized in that, A second pressure roller (7) is provided at the front end of the second conveying mechanism (22). The first drive motor (4) is connected to the first and second pressure rollers (3, 7) at the same time, and drives the first and second pressure rollers (3, 7) to rotate synchronously in opposite directions.

7. The bamboo leaf sorting device according to claim 6, characterized in that, The height of the first pressure roller (3) and / or the second pressure roller (7) can be adjusted.

8. The bamboo leaf sorting device according to claim 7, characterized in that, The height of the first drive motor (4) is adjustable.

9. The bamboo leaf sorting device according to claim 7, characterized in that, The outer ring of the first pressure roller (3) and / or the second pressure roller (7) is made of elastic material.

10. The bamboo leaf sorting device according to claim 1, characterized in that, A second photoelectric sensor (8) is also provided in front of the first pressure roller (3).

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